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논문 기본 정보

자료유형
학술저널
저자정보
최두순 (인하공업전문대학) 김홍석 (대구대학교)
저널정보
한국소성·가공학회 소성·가공 소성가공 제21권 제1호
발행연도
2012.2
수록면
36 - 41 (6page)

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초록· 키워드

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Gas Assisted Injection Molding is a relatively new low-pressure injection molding technique that provides benefits such as reduced part warpage, excellent surface quality without shrink marks, greater design flexibility, etc. In the gas assisted injection molding process, the injected pressurized nitrogen gas flows through designed gas channels and forms hollow sections within the part. However, due to the characteristics of the gas, the design of the gas channels which are the paths for the injected gas is important in order to avoid defects such as gas blowout, fingering, etc. Therefore, in this study, the gas channel design for gas assisted injection molding of exterior display panels was conducted by examining the results of three CAE analyses. The designed gas channel was verified by conducting tryouts using a 450 ton injection molding machine with 3-stage pressure controlled gas kit. In addition, the hollow shapes which were formed by the gas with the installed gas channels were examined by examining the cross sections of the prototypes that were produced. As a result, it was found that exterior display panels can be produced without any defect by applying the gas assisted injection molding technique.

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Abstract
1. 서론
2. 제품 분석 및 가스채널 구상
3. CAE 해석을 통한 최종안 선정
4. 가스사출 성형실험
5. 결론
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